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Triple Scale Hydrometer, Solid Ballast

Triple Scale Hydrometer, Solid Ballast with instructions & trial jar.

A hydrometer is a device the measures the density or specific gravity of a liquid.

Hydrometers are calibrated based upon the specific gravity of water at, then the measurement must be adjusted. An adjustment scale is provided with the hydrometer.  The container may be used as a test jar.

As an example, if your Original Gravity (pre-fermentation) reading is about 1.055  and the Final Gravity (end of fermentation) reading is approximately 1.010, then from these two measurements we can calculate the beer's alcohol percentage by taking the corresponding potential alcohol readings and taking the difference between the 2 readings.


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